Spontaneous induction of colicin E1 in Escherichia coli strains deficient in both exonucleases I and V.
AUTOR(ES)
Bassett, C L
RESUMO
Colicin E1 synthesis is spontaneously induced in pRSF2124-carrying strains of Escherichia coli deficient in exonucleases I (sbcB) and V (recB recC). In contrast, the specific activity of beta-lactamase, which is also encoded by pRSF2124, is not affected by the absence of these enzymes. These results suggest that colicin E1 induction is specific and does not result either from a significant change in overall plasmid transcription or copy number. Furthermore, the level of spontaneous induction was similar to that obtained with mitomycin C.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=219340Documentos Relacionados
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